cfi-offset.mir
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# RUN: llc -march=x86-64 -run-pass none -o - %s | FileCheck %s
# This test ensures that the MIR parser parses the cfi offset operands
# correctly.
--- |
declare void @foo(i32)
define i32 @test(i32 %a, i32 %b, i32 %c, i32 %d) {
entry:
%add = add nsw i32 %b, %a
%add1 = add nsw i32 %add, %c
%add2 = add nsw i32 %add1, %d
tail call void @foo(i32 %add2)
%add6 = add nsw i32 %add2, %add2
ret i32 %add6
}
...
---
name: test
tracksRegLiveness: true
frameInfo:
stackSize: 8
adjustsStack: true
hasCalls: true
fixedStack:
- { id: 0, type: spill-slot, offset: -16, size: 8, alignment: 16 }
body: |
bb.0.entry:
liveins: $ecx, $edi, $edx, $esi, $rbx
PUSH64r killed $rbx, implicit-def $rsp, implicit $rsp
CFI_INSTRUCTION def_cfa_offset 16
; CHECK: CFI_INSTRUCTION offset $rbx, -16
CFI_INSTRUCTION offset $rbx, -16
$ebx = COPY $edi, implicit-def $rbx
$ebx = ADD32rr $ebx, killed $esi, implicit-def dead $eflags
$ebx = ADD32rr $ebx, killed $edx, implicit-def dead $eflags
$ebx = ADD32rr $ebx, killed $ecx, implicit-def dead $eflags
$edi = COPY $ebx
CALL64pcrel32 @foo, csr_64, implicit $rsp, implicit $edi, implicit-def $rsp
$eax = LEA64_32r killed $rbx, 1, $rbx, 0, _
$rbx = POP64r implicit-def $rsp, implicit $rsp
RETQ $eax
...